What if you could enjoy pornography and help the environment at the same time? Thanks to Pornhub, you can.

In honor of Arbor Day, which was on April 25, Pornhub is celebrating its "Pornhub Gives America Wood" promotion until the end of the week. Their hope is that porno lovers will "help Pornhub support the environment."

There is one catch (depending on what you're into): You have to watch videos from a certain category.

"This Arbor Day Pornhub will do what it does best and give America some serious wood by donating one tree for every 100 videos viewed in our Big D*ck category," the pornography site explains.

As of now, Pornhub has committed to planting 11,514 trees. Now that's a lot of guilt-free porn!

According to The Daily Dot, Pornhub has yet to determine where exactly these trees will take root. The pornography site has also yet to decide on an environmental organization with which to partner. Pornhub's PR director said that there are currently three different groups under consideration.

This isn't Pornhub's first attempt at uniting porn and environmentalism. Pornhub is reportedly involved with Green is Universal and airs Go Fossil Free advertisements before letting its viewers unwind with its fine collection.

"While you're watching some nice pieces of ash, you'll also be helping to spruce America up! (Bushes are optional)," Pornhub continues on the promotion's page.

Apparently, Pornhub is into the holidays quite a bit. The Daily Dot reports that the site also likes to celebrate Valentine's Day and Sukkot, a Jewish celebration. Other holiday promotions have included giving its users free access to its mobile site and "clips of busty young Semitic women doing unspeakable things with a lulav and etrog," according to The Daily Dot. We can only assume that the latter was a Sukkot promotion.

So if you're still in the Arbor Day spirit — and perhaps in the mood for something else — check out Pornhub this week. You'll feel good in more ways than one.